Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756636AbdLVUzo (ORCPT ); Fri, 22 Dec 2017 15:55:44 -0500 Received: from mail-vk0-f50.google.com ([209.85.213.50]:33649 "EHLO mail-vk0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756086AbdLVUzj (ORCPT ); Fri, 22 Dec 2017 15:55:39 -0500 X-Google-Smtp-Source: ACJfBov1IC1/1doG3g7lNmXmHZgntztQ5VTOS5sdtNL84mzflOfqnY8osr3jZA6/60chkjDAA2QYUg== Date: Fri, 22 Dec 2017 15:55:36 -0500 From: Tom Horsley To: Laura Abbott Cc: linux-kernel@vger.kernel.org, Kees Cook , David Howells , Serge Hallyn , James Morris Subject: Re: ptrace versus setuid changes in 4.14? Message-ID: <20171222155536.502c0a53@zooty> In-Reply-To: References: <20171221091811.5bbb47db@tomh> X-Mailer: Claws Mail 3.15.1-dirty (GTK+ 2.24.31; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 551 Lines: 17 On Fri, 22 Dec 2017 12:28:25 -0800 Laura Abbott wrote: > Assuming this is https://bugzilla.redhat.com/show_bug.cgi?id=1528633 > This is yet another victim of > > commit e37fdb785a5f95ecadf43b773c97f676500ac7b8 (refs/bisect/bad) > Author: Kees Cook > Date: Tue Jul 18 15:25:31 2017 -0700 > > exec: Use secureexec for setting dumpability You mean there is hope this really is a bug and not a security enhancement? Amazing :-). And yes, that is the bugzilla I submitted after I reduced things to a small test program.